#![allow(
    non_snake_case,
    unused_variables,
    dead_code,
    unused_imports,
    unused_mut,
    non_upper_case_globals
)]

fn main() {
    let n: usize = {
        let mut line: String = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        line.trim().parse().unwrap()
    };

    let MOD: i64 = 998244353;
    let mut ANS: i64 =0;
    let mut k: i64=0;
    let mut nec:i64=0;

    for i in 0..n+1{
        let mut now:i64=1;

        while now<=i as i64{
            k=i as i64/now;
            nec=i as i64/k+1;

            ANS=(ANS + k*(nec-now))%MOD;

            now=nec;

        }
    }
    println!("{}",ANS);
}